New Rough Approximations Based on E-Neighborhoods

Tareq M. Al-shami, Wen Qing Fu, E. A. Abo-Tabl and Abdel-Haleem Abdel-Aty

Complexity, 2021, vol. 2021, 1-6

Abstract: This paper puts forward some rough approximations which are motivated from topology. Given a subset R⊆U×U, we can use 8 types of E-neighborhoods to construct approximations of an arbitrary X⊆U on the one hand. On the other hand, we can also construct approximations relying on a topology which is induced by an E-neighborhood. Properties of these approximations and relationships between them are studied. For convenience of use, we also give some useful and easy-to-understand examples and make a comparison between our approximations and those in the published literature.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:hin:complx:6666853

DOI: 10.1155/2021/6666853

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